Watch chain



FIG. 1 is a front perspective view of a watch chain of the present invention;

FIG. 2 is a front elevational view of the watch chain of FIG. 1;

FIG. 3 is a rear elevational view of the watch chain of FIG. 1;

FIG. 4 is a right side elevational view of the watch chain of FIG. 1; and,

FIG. 5 is a left side elevational view of the watch chain of FIG. 1.

The broken lines in FIG. 1 show an unclaimed watch and portions of the watch chain that do not form part of the claimed design. The broken lines in FIGS. 2 through 5 show portions of the watch chain that do not form part of the claimed design. 

CLAIM The ornamental design for a watch chain, as shown and described. 